Head-lamp.



R. H. WELLES.

HEAD LAMP.

APPLICATION FILED NOV-19.1915.

1,201,404; v Patented 0ct.17,1916.'

m! FCEEQLP'M V citizen 'ofthe United State i STATES FATE i OFIC.

RICHARD H. WELLES, or KENOSHA, Wiscons n, ASSIGNOR TO THE BADGER BRASS MFG. 00., 0F KENOSHA, Wisconsin; A CORPORATION or WISCONSIN.

HEAD-LAMP.

To all whom. it may concern Be it known that'I, RICHARD H. WELLES, a residing at s Kenosha, in the county of lienosha and State of Wisconsln, have invented'certain new and usefuhImprovements in Head- Lamps, of which the following is a specification. I

My invention relates to improvements in head lamps, and 1s particularly well fitted for use in connection with electric lamps for vehicles, such as automobiles.

Among the salient objects of the invention are, to provide a lamp-casing, the exterior ofvwhich shall be substantially free from projections which "might cause dirt to accumulate, render the lamp difficult to clean, or detract from the exterior appearance of the same; to provide in a lamp of the class described a construction which will readily manufacturing operations; and, in general,

to provide an improved lamp of the character referred to.

In the drawings accompanying this application Figure 1 is an aXial section of my im proved lamp; Fig. 2 is a fragmentary view, looking in the direction of the arrow 2 in Fig. 1; Fig. 3 is a section taken on the line 3,3 of Fig. 1.; Fig. .4 is a section taken on the line 4-4 of Fig. 1'; and Fig.- 5 is a fragmentary broken out view )f a portion of Fig. 1 showing the ring-expanding device.

In the drawings I have illustrated my device as applied to an electric head lamp, somewhat similar in type to that shown in the patent to Carl Moru, No. 1,128,893, February 16, 1915, of whichmyinvention is an Patented Oct. 17 1916.

. Application filed November 19, 1915. Serial No. 62,266.

to constitute a seat for the locking ring 12,

the curvature of said turned over portion 11 corresponding with the curvature of the ring 12, so that in effect said two parts form a c1rcular bead or hollow annular chamber around the glazing 13.

Thedight-producing means in the lamp comprlse a condensed electric filament 14 contained within a bulb 15 having a base 16 which fits into a bayonet socket 17 slidably supported in a tubular member 18 rigidly united to the apex of the parabolic casing 10. The reflector 19, which is of the parabolic type, the filament 14 being capable of adjustment in the focus thereof, is perforated at its apex in order to admit thesocket 17 and the outer end of said reflector is flanged, as

shown at 20, andis supported upon aseat.

21 at the inner periphery of the annular supporting member 22, the construction of tion. I

The annular member 22 is made of thin rolledor stamped metal, its outer portion beingformed (AM, as shown at 23, in order to fit the curvature of the inner wall of the hollow annular part 11. The member 22 is rigidly united to the part 11 by sweating'the two parts together with solder, asshown at 24, the crevice between the inner wall 11 and the outer curve of the bend 25 in the member 22 making it extremely easy to apply the solder. I It should be understoodthat the ring member 22 is not continuousaround its circumference, but is severed radially, as shown at 26, in order to permit the insertion of said ringin the casing preparatory to soldering it in position.

Between the glazing l3 and the outer face of the flange 20 of the reflector I prefer to insert a rather thick annular, gasket 27 cut from a sheet of suitable material, such as thick paper or cardboard, the glazing, gasket, and reflector being clamped tightly upon the flanged seat 21 by the resiliency of the ring 12, which operates substantially in the same manner as is described in the patent to Walter H. White, improvements in locking rings, granted June 22, 1915, Patent No. 1,144,083. I 4

The clamping and expanding device for 'the locking ring 12 is shown in Figs 1 and 4. in said figures, 28 is a box-like projection, substantially semi-circular in section, and tangentially disposed at the bottom of the lamp casing, and contains a longitudinal clamping screw 29, the head 30 of which ,engages the end of said box 28, the other end of said screw being fitted with a fixed collar 31 which prevents the screw from escaping from its pocket. The boxshaped member 28 is secured to the outer face of the casing '10 by means of small semi-circular flanges 32 united to the casing by rivets or spot welding, as shown at 33. The ends of the locking ring 12 overlap, as shown at 34, the

under sides of said ends adjacent the overlap having soldered thereto a pair of'small box-like lugs 35 and 36. -As shown in Fig. 5, a lug 36 is punched out of the supporting member 22 and projects inwardly, forming an abutment which engages the box lug 36 when the ring 12 is expanded. The ring 12 is expanded and locked by a tongue 37 which projects outwardly through an aperture'in the supporting member 22 and engages the other box lug 35. The inner end of said; jtongue 37, which is made of fairly heavy strap metal, is folded around in the form of a circle, as shown in Fig. 4, the cylindrical japerture thus formed being tapped out to fit the threads of the screw 29. It is ob'vous that rotation of the said screw 29 will cause'thngential movement of the tongue 3?, eansmgrelative movement of the 1 overlappingends of the ring 12 in a circumferential direction, thus clamping the parts of the lamp securely in position.

An important feature of my invention re sides in the manner in. which the lamp casing receives its external support. The usual vibration usually encountered on automobiles, which has a badetfect on joints made by means of soldering. In some cases these attachment lugs have been secured to the casing by means of rivets, but the rivet' heads projecting through the casing have seriously detracted from the appearance of the lamp and also have made it a much more difficult matter to properly clean the casing, besides being comparatively expensive. My improved construction obviates these disadvantages, as will hereinafter appear.

My improve-d attachment lug, as shown in Figs. 1, 2 and 3. comprises a hollow boxshaped stamping 39, the ends -40 of which are substantially horizontal and are per- I fm'ated to admit the reduced ends 41 of Considerable d'ifii the forks, as shown in Fig. 3, said forks being provided with suitable washers 42 and nuts 43 for securely clamping the lugs to the forks. In order to secure the lugs 39 to the casing, the latter isperforated from the outside, th metal of the perforated area being cut in the center and bent back substantially at right angles within the casing, as shown at 44, the distance between said parts 44 being the same as the distance between the inwardly projecting side extensions 45 of the box-like lugs 39. The ends 40 of said attachment lugs are also bent back to form flanges 46, suitably curved to fit the curvature of the bowl-shaped casing 10. After the attachment lugs have been pressed or formed to the proper shape they are in; serted in the apertures of the casing from the inside, so that the flanges 46 form abutments positioning the lugs, which are then firmly secured in position and united to the casing by spot welding the parts 44 and 45 together, as shown at 47. I could use rivets in place of spot Welding the parts 44 and 45 together, but I find that spot welding is con siderably cheaper, besides making a much more rigid and secure construction. Owing to the fact that the parts-44 and 45 are wholly contained within the casing and are not visible from the outside, the mutilating of the surface of the metal by the spot Welding electrodes is of no consequence, since it does not affect the exterior finish or appear ance of the lamp.

The construction described is exceptionally neat' and graceful in appearance, while the various parts are extremely simple and inexpensive to manufacture and assemble together. Since no castings or other heavy parts are employed in the construction of the lamp, the total weight is extremely small; consequently, the. lamp is comparatively easy to support and maintain rigidly and securely in the forks provided for that purpose The details of the construction described are capable. of some modification without sacrificing the benefits or advantages of the invention. I do not, therefore, wish to be limited to the construction shown and described, except as specified in the appended claims.

1. In a lamp of the class described, the combination of an outer bowl-shaped casing, the rim of the bowl being curved to constitute part of a hollow ornamental trim surrounding a glazing opening, a separately formed annular supporting member having an outer portion conformed to and seated against the interior surface of the wall of said casing and united thereto, said annular member having a flange projecting radially inwardly and provided with an outwardly facing seat, a parabolic reflector having an 1,201 ,eoa

' outwardly projecting flange engaging the outer face of said seat, a glazing on said refiector, and a locking ring forming the remaining part of said ornamental trim and engaging said glazing.

2. In an electric search lamp for automobiles, the combination of an outer bowlshaped casing having an outer rim curved to constitute the outer portion of a hollow ornamental trim surrounding the glazing opening, a pressed sheet metal annular supporting member located within the rim of said casing and having an outer curved flange projecting inwardly of the casing to conform to the curvature of the inner surface of said rim and united thereto by soldering, said annularmember having an in wardly projecting annular ledge, a parabolic reflector nested within said outer casing and having an outwardly projecting flange at its rim engaging the outer face of said ledge, a gasket on said reflector flange, a glazing on said gasket, and a locking ring forming the remaining part of said ornamental trim anl engaging said glazing to clamp said reflector,

gasket, and glazing in position.

3. In a lamp, the combination of an outer inclosing casing formed of sheet metal and having an inwardly projecting integral ear, and an attachment member projecting outsvarclly from said casing, said member having an integral 4" extension projecting inwardly within said casing and united to said ear.

4. In a Search lamp for automobiles, the combination of an outer casing with a wall formed of sheet metal and apertured, two aperture edges being reversely 'bent' and forming spaced apart ears projecting within said casing, and a pressed metal attachment lughaving a pair of integral extensions alsosaid lug.

biles, the combination of an outer bowlshaped easing, a parabolic reflector nested within said casing whereby an inclosed space is formed between said bowl and reflector, and a pressed metal attachment lug for said lamp comprising a hollow box-shaped memher having a pair of its opposite sides extended to project inwardly within said casing, said casing being perforated to admit said side extensions and having integral inwardly extending ears forming flanges at two opposite edges of said perforation, said ears being united to said side extensions of 6. In a lamp of the class described, the combination of an outer bowl-shaped easing the rim of the bowl being curved inwardly to constitute part of a hollow ornamental trim surrounding the glazing opening, a discontinuous sheet metal annular supporting member of external diameter greater than the interior diameter of said curved rim and having an outer circumferential portion shaped to fit the inner surface of said rim and seated therein, said annular member haying an inwardly projecting flange pro vided with an, outwardly facing seat, a parabolic reflector having an outwardly projecting flange engaging the outer face ofsaid seat, a glazing on said reflector, and a locking ring forming the remaining part of said ornamental trim and engaging said glazing.

C. A. Scans, EMILIE ROSE. 

